Transcoding videos with Ruby and ffmpeg

[Transcoding videos with Ruby and ffmpeg](https://github.com/streamio/streamio-ffmpeg): ```ruby require 'streamio-ffmpeg' movie = FFMPEG::Movie.new("jebus.wmv") movie.transcode("jebus.mp4") { |progress| puts progress } movie.transcode("jebus.flv") { |progress| puts progress } ```